Any of many species of wild or domestic web-footed birds that live in or near water. The Chinese are credited with being the first to raise ducks for food. Relative to chicken, duck is more commonly used in China tha n in the West, probably because of the greater variety of ways of preparing it. Ducks are slow-boiled, red-cooked, or roasted, but very rarely stir-fried. Go here for Chinese recipes on duck.